More cloud-baby BS. Imagine son, in the early 2000's any SMB or Mid Market companies top expense was maintaining their Exchange Server farms, it was probably 80% of my billables up until Google Apps took off.
These are cost effective against outage risk factors on a 1 to 20 ratio against. Outages were so constant it literally killed the ASP movement. Anyway remember "Application Server Providers". Salesforce is the only one who survived it.
This generation has yet to see a real outage.